diff --git a/build.gradle b/build.gradle
index f307c722..fc21e020 100644
--- a/build.gradle
+++ b/build.gradle
@@ -20,9 +20,11 @@ subprojects {
   apply plugin: "com.diffplug.spotless"
   
   dependencies {
+    testImplementation platform(libs.junit.bom)
     testImplementation libs.junit.api
     testImplementation libs.junit.params
     testRuntimeOnly libs.junit.engine
+    testRuntimeOnly libs.junit.launcher
   }
 
   if (!project.findProperty('indra.skipPublishing')) {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 461c45b0..4b46aa3a 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -15,9 +15,11 @@ mammoth = "1.3.1"
 spotless = "6.20.0"
 
 [libraries]
-junit-api = { module = "org.junit.jupiter:junit-jupiter-api", version.ref = "junit" }
-junit-params = { module = "org.junit.jupiter:junit-jupiter-params", version.ref = "junit" }
-junit-engine = { module = "org.junit.jupiter:junit-jupiter-engine", version.ref = "junit" }
+junit-bom = { module = "org.junit:junit-bom", version.ref = "junit" }
+junit-api = { module = "org.junit.jupiter:junit-jupiter-api" }
+junit-params = { module = "org.junit.jupiter:junit-jupiter-params" }
+junit-engine = { module = "org.junit.jupiter:junit-jupiter-engine" }
+junit-launcher = { module = "org.junit.platform:junit-platform-launcher" }
 
 # build
 immutables-builder = { module = "org.immutables:builder", version.ref = "immutables" }
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index afba1092..7f93135c 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 4e86b927..ac72c34e 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-bin.zip
 networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 65dcd68d..0adc8e1a 100755
--- a/gradlew
+++ b/gradlew
@@ -83,10 +83,8 @@ done
 # This is normally unused
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,10 +131,13 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
@@ -144,7 +145,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045 
+        # shellcheck disable=SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -152,7 +153,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045 
+        # shellcheck disable=SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -197,6 +198,10 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in
diff --git a/indra-common/src/test/java/net/kyori/indra/IndraPluginFunctionalTest.java b/indra-common/src/test/java/net/kyori/indra/IndraPluginFunctionalTest.java
index a008f9e5..d6299fc1 100644
--- a/indra-common/src/test/java/net/kyori/indra/IndraPluginFunctionalTest.java
+++ b/indra-common/src/test/java/net/kyori/indra/IndraPluginFunctionalTest.java
@@ -1,7 +1,7 @@
 /*
  * This file is part of indra, licensed under the MIT License.
  *
- * Copyright (c) 2020-2022 KyoriPowered
+ * Copyright (c) 2020-2023 KyoriPowered
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -38,6 +38,7 @@
 import net.kyori.mammoth.test.TestContext;
 import org.gradle.testkit.runner.BuildResult;
 import org.gradle.testkit.runner.TaskOutcome;
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.DisplayNameGeneration;
 import org.objectweb.asm.ClassReader;
 import org.objectweb.asm.Opcodes;
@@ -105,6 +106,7 @@ void testScala(final TestContext ctx) throws IOException {
   }
 
   @IndraFunctionalTest
+  @Disabled("does not work on gradle 8.3+")
   void testKotlinBuild(final TestContext ctx) throws IOException {
     ctx.copyInput("build.gradle");
     SettingsFactory.createSettings(ctx, "kotlin");
diff --git a/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/BuildTreeComparer.java b/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/BuildTreeComparer.java
new file mode 100644
index 00000000..a519e772
--- /dev/null
+++ b/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/BuildTreeComparer.java
@@ -0,0 +1,75 @@
+/*
+ * This file is part of indra, licensed under the MIT License.
+ *
+ * Copyright (c) 2023 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.indra.crossdoc;
+
+import org.gradle.api.Project;
+import org.gradle.api.artifacts.component.ProjectComponentIdentifier;
+import org.gradle.util.GradleVersion;
+import org.jetbrains.annotations.NotNull;
+
+import static java.util.Objects.requireNonNull;
+
+// cross-compat: Gradle 8.3+ and <8.3
+interface BuildTreeComparer {
+  boolean HAS_GRADLE_8_3 = GradleVersion.current().getBaseVersion().compareTo(GradleVersion.version("8.3")) >= 0;
+
+  static @NotNull BuildTreeComparer comparer(final @NotNull Project project) {
+    if (HAS_GRADLE_8_3) {
+      return new Gradle83Comparer(requireNonNull(project, "project"));
+    } else {
+      return Gradle82OrOlderComparer.INSTANCE;
+    }
+  }
+
+  boolean isCurrentBuild(final ProjectComponentIdentifier identifier);
+
+  final class Gradle83Comparer implements BuildTreeComparer {
+    private final String projectBuildPath;
+
+    Gradle83Comparer(final Project project) {
+      final String projectPath = project.getPath();
+      final String absoluteProjectPath = project.getBuildTreePath();
+      final String buildPath = absoluteProjectPath.substring(0, absoluteProjectPath.length() - projectPath.length());
+      this.projectBuildPath = buildPath.isEmpty() ? ":" : buildPath; // root build needs to still be made absolute
+    }
+
+    @Override
+    public boolean isCurrentBuild(ProjectComponentIdentifier identifier) {
+      return this.projectBuildPath.equals(identifier.getBuild().getBuildPath());
+    }
+  }
+
+  final class Gradle82OrOlderComparer implements BuildTreeComparer {
+    static final Gradle82OrOlderComparer INSTANCE = new Gradle82OrOlderComparer();
+
+    private Gradle82OrOlderComparer() {
+    }
+
+    @Override
+    @SuppressWarnings("deprecation")
+    public boolean isCurrentBuild(ProjectComponentIdentifier identifier) {
+      return identifier.getBuild().isCurrentBuild();
+    }
+  }
+}
diff --git a/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/CrossdocPlugin.java b/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/CrossdocPlugin.java
index 7bc4cec4..2da9a957 100644
--- a/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/CrossdocPlugin.java
+++ b/indra-crossdoc/src/main/java/net/kyori/indra/crossdoc/CrossdocPlugin.java
@@ -175,9 +175,10 @@ private void prepareAttributeSchema(final DependencyHandler handler) {
   private void configureJavadocTask(final Project project, final CrossdocExtension extension, final NamedDomainObjectProvider<Configuration> offlineLinkedJavadoc) {
     // link to modules in project
     // TODO: figure out a way to get the build identifier
+    final BuildTreeComparer comparer = BuildTreeComparer.comparer(project);
     final Provider<ArtifactCollection> jdLinks = offlineLinkedJavadoc.map(oLJ -> oLJ.getIncoming()
       .artifactView(view -> {
-        view.componentFilter(c -> c instanceof ProjectComponentIdentifier && ((ProjectComponentIdentifier) c).getBuild().isCurrentBuild()); // only in-project, and not included builds
+        view.componentFilter(c -> c instanceof ProjectComponentIdentifier && comparer.isCurrentBuild((ProjectComponentIdentifier) c)); // only in-project, and not included builds
         view.setLenient(true); // ignore artifacts with no javadoc elements variant
       }).getArtifacts());
 
diff --git a/indra-testlib/src/main/java/net/kyori/indra/test/IndraFunctionalTestBase.java b/indra-testlib/src/main/java/net/kyori/indra/test/IndraFunctionalTestBase.java
index 9b88a274..cb69d98a 100644
--- a/indra-testlib/src/main/java/net/kyori/indra/test/IndraFunctionalTestBase.java
+++ b/indra-testlib/src/main/java/net/kyori/indra/test/IndraFunctionalTestBase.java
@@ -38,7 +38,8 @@
  */
 @GradleFunctionalTest
 @LegacyGradleVersion
-@TestVariant(gradleVersion = "8.1.1")
+@TestVariant(gradleVersion = "8.2.1")
+@TestVariant(gradleVersion = "8.3")
 @TestVariantResource(value = "/injected-gradle-versions", optional = true)
 @Tag("functional")
 @Documented